As the valves need to adapt to the requirements of a variety of working conditions, so it's a huge number variety, in view of this situation Yingli group attaches great importance to the development of new products, to seek the way to further develop the technology. Combined with their own conditions, they put forward: Establish a user-friendly product design concept, and along the scientific technical means to determine our own new product development goals, to promote the sustainable and healthy development of Yingli valve.